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All Journal Agrotrop : Journal on Agriculture Science International Journal of Biosciences and Biotechnology Buletin Udayana Mengabdi E-Jurnal Agroekoteknologi Tropika (Journal of Tropical Agroecotechnology) Jurnal Lahan Suboptimal Journal of Degraded and Mining Lands Management Caraka Tani: Journal of Sustainable Agriculture Jurnal Agrotek Tropika Agro Bali: Agricultural Journal Jurnal Bali Membangun Bali Nandur
NI MADE TRIGUNASIH
Program Studi Agroekoteknologi, Fakultas Pertanian Universitas Udayana
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Languange, Linguistic, Communication & Media Medicine & Pharmacology Public Health Social Sciences Transportation Other

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Journal : Jurnal Lahan Suboptimal

 1 
Correlation Between Soil Nitrogen Content and NDVI Derived from Sentinel-2A Satellite Imagery Ni Made Trigunasih; Moh Saifulloh
Jurnal Lahan Suboptimal : Journal of Suboptimal Lands Vol. 11 No. 2 (2022): JLSO
Publisher : Research Center for Suboptimal Lands (PUR-PLSO), Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/jlso.11.2.2022.574

Abstract

The United Nations Educational, Scientific, and Cultural Organization (UNESCO) has recognized the Balinese agricultural irrigation system known as subak as part of the world's cultural heritage. Subak is the driver of Bali’s agricultural and tourism sectors and, therefore, must be preserved. Population growth triggers the conversions of land functions, from subak to built-up lands, such as those transpiring in Denpasar City. On the other hand, with the population continuously increasing, the demand for food becomes inevitably higher. This has caused farmers to intensify their agricultural practices through, for instance, applying chemical fertilizers excessively-potentially decreasing soil fertility. An example is urea fertilizer that contains a macronutrient, i.e., nitrogen (N). This study aimed to analyze the soil N content and its correlation with rice growth using the Normalized Difference Vegetation Index (NDVI). The Kjeldahl method was conducted to measure the N levels in the soil laboratory. NDVI was extracted from remote sensing data, namely Sentinel-2A imagery, on a cloud computing platform, Google Earth Engine (GEE), using Band 8 (NIR) with a wavelength of 0.842 m and Band 4 (Red) with 0.665 m. The results showed that the N levels varied from 0.09% to 0.31% and the average NDVI values ranged from 0.47 to 0.54. There is a strong correlation (r = 0.75 to 0.78) between the NDVI values derived from the Sentinel-2A Satellite Imagery and the soil nitrogen content. Spatially, based on the analysis results of the 2019‒2021 data, parts of existing subak systems, i.e., Subak Kerdung, Mergaya, Padanggalak, and Sembung, have high soil N contents and NDVI values.
Co-Authors A.A.NYOMAN SUPADMA Abd. Rasyid Syamsuri Adelia Novita Marampa Agustina, I Komang Yudi AHMADI FAUZAN NUR RAHMAN AI Nyoman Sunarta Anak Agung Istri Agung Pramesti Apriadi, Putu Agung Artanaya, I Wayan Bintang Bayu Mahapati DEWA AYU CHYNTIA ANGELINA DEWA AYU PUTU SRI WAHYUNI DIBIA I N Dita Ayu Lorenza DJIAN NILAM SARI Dwiki Sinatrya Putra Fadilah Triani Putri Febriana, Anastasia GEDE WIJANA Girsang, Giyo Brem Dana Gusti Ngurah Alit Susanta Wirya I DEWA MADE ARTHAGAMA I DEWA MADE ARTHAGAMA I Gede Ketut Susrama I Ketut Suada I MADE ADNYANA I Made Mega I Made Mega I Made Mega I Nengah Netera Subadiyasa I Nyoman Dibia I NYOMAN MERIT I NYOMAN RAI I NYOMAN SUNARTA I NYOMAN WIJAYA I Wayan Narka I Wayan Narka I Wayan Narka I WAYAN NARKA I WAYAN NARKA I WAYAN SEDANA I.D.M. Arthagama I.N. Dibia I.N. Sunarta Ida Bagus Putu Bhayunagiri IMAS CAHYANINGTIYAS INDAYATI LANYA Irene Levina Yulianti Sinaga Isabella Tiurmauli Jencristy Gilberd Sitanggang Josua Sintong Martin Hutauruk KARTIKA DEWI OKTAFIANTI Kezia Angelia Febyna Putri M D DANA MADE SRI SUMARNIASIH MADE SRI SUMARNIASIH Moh Saifulloh MOH SAIFULLOH moh saifulloh, moh Nahak, Senon Apriyanto Nalle, Margiman S. NI KADEK ARY KRISNAYANTI Ni Luh Kartini Ni Made Ely Ariani NI NENGAH SONIARI NI NYOMAN ARI MAYADEWI NI PUTU UTARI HANDAYANI Nyoman Bintang Kartika Sari Pramudita, I Gede Made Prananda Yogathama Pribadi Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna Putu Perdana Kusuma Wiguna RENI ANDRIANI NAIBAHO Risky Novelin Simatupang Sidabutar, Febrin SISKA MAILASARI SUMARNIASIH, MADE SRI T. Kusmawati TATIEK KUSMAWATI THRESIA ADHISYA SITORUS UTAMA, I WAYAN EKA KARYA VANDANI, YAYAN WIDHIANTHINI WIDHIANTHINI Wigunanda, I Wayan Surya Aditya Wiraatmaja, Wayan WIYANTI WIYANTI YUDHA, I KADEK WISMA